I have a spray tan machine which I wish to sell in the USA. I have had the machine tested by a CE test house. Do I have to have a UL approval as well?
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operational amplifier - What is the advantage of the inverting opamp circuit over non-inverting one?Op amp circuits are designed to achieve a specific gain regardless of the differences between individual op amps. One very common circuit ha...
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Related question: Ceramic capacitors: how to read 3-digit markings? I have some ceramic capacitors with a 2-digit marking. How to read them?...
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I'm having an issue with my Silicon Photomultiplier (SiPM) feedback circuit. The output is not behaving as expected. My board schematic ...
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Can you please give me a definition, or at least a more specific context, of the term "point-of-load" converter/regulator? I have ...
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My input is an FM carrier of 80.00MHz. It is FM modulated with 625kbpsec data. The deviation from carrier is about +/-700kHz. The data never...
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My application has a small device, which draws about a watt, and is powered through a small dynamo, backed by a battery: The dynamo generate...
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Looking at all the various schematics of op amps, regulators, etc. I see lots of multicollector or multiemitter BJTs (and why no multibase?)...
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